js-获取地址栏参数

function GetQueryString(name)
{
    var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if(r!=null)return unescape(r[2]); return null;
}

console.log(location.href)
console.log(GetQueryString("id"));
var numm=parseInt(GetQueryString("id"))
console.log(numm)